Practice Step 2: Rise Of Mobile Computing – Power Becomes A Bottleneck (2.4)

Practice: Step 2: Rise of Mobile Computing – Power Becomes a Bottleneck

Lesson 2.4Evolution of Low-Power Design in Advanced Semiconductor Devices

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What does DVFS stand for?
Show hintHide hint
Think about how it adapts power based on workload.
Question 2.
What is the formula for dynamic power?
Show hintHide hint
Remember what each variable represents in the context of power consumption.
3Question 3.
What does DVFS stand for?
- Dynamic Variable Frequency Scaling
- Dynamic Voltage and Frequency Scaling
- Data Voltage and Frequency Scaling
Show hintHide hint
Remember, it's a power management term.
4Question 4.
True or False: Clock gating helps reduce the dynamic power of circuits by activating all components.
- True
- False
Show hintHide hint
Think about the waste of power when circuits are running idle.
Question 5.
Given the equation P_dyn = αCV^2f, analyze how a 10% increase in clock frequency affects dynamic power, assuming capacitance and voltage remain constant.
Show hintHide hint
Remember, increase in frequency has a squared effect on power consumption.
Question 6.
Discuss how implementing DVFS in a smartphone can lead to prolonged battery life without compromising performance during light usage.
Show hintHide hint
Think about how different tasks might require more or less processing power.

5 more questions in this section. Enroll free to practise them all.